J.M.W. Turner

Joseph Mallord William Turner, an English landscape painter usually known as J.M.W. Turner, was born Apr. 23, 1775.  Turner was remarkable in his dramatic use of light, and he greatly transformed the look of landscape painting with his proto-impressionist style.  Most...

J. Robert Oppenheimer

J. Robert Oppenheimer, an American theoretical physicist, was born Apr. 22, 1904. Oppenheimer was a gifted mathematician who came of age during the rise of quantum mechanics in the 1920s, indeed, he took an active role in its success, studying in Germany with Max Born...

John Michell

John Michell, an English physical scientist, died Apr. 21, 1793, at the age of about 69; his birthdate is unknown. Hardly anyone who is not a specialist in the history of science has heard of Michell, and even in his own day, only a few people were aware of his work....

James David Forbes

James David Forbes, a Scottish physicist, was born Apr. 20, 1809.  Forbes was professor of natural philosophy at the University of Edinburgh and is noted for his extensive work on heat flow and infrared radiation.  But he was also an authority on glaciers, and we are...

Glenn Seaborg

Glenn Seaborg, an American nuclear chemist, was born Apr. 19, 1912.  In February of 1941, Seaborg led the team that discovered plutonium. They were working with the 60-inch cyclotron built by E. O. Lawrence at the University of California in Berkeley (second image,...